pbc2data: pbc2 dataset

In pencal: Penalized Regression Calibration (PRC) for the Dynamic Prediction of Survival

pbc2 dataset

Description

This list contains data from the Mayo Clinic primary biliary cirrhosis (PBC) study (1974-1984). It comprises two datasets, one with the survival and baseline covariates and the other with the longitudinal measurements. The datasets are a rearrangement of the 'pbc2' dataframe from the 'joineRML' package that makes them more suitable for analysis within 'pencal'

Usage

data(pbc2data)

Format

The list contains two data frames:

• baselineInfo contains the subject indicator 'id', information about the survival outcome ('time' and 'event') and the covariates 'baselineAge', 'sex' and 'treatment';

• longitudinalInfo contains the subject 'id' and the repeated measurement data: 'age' is the age of the individual at each visit, 'fuptime' the follow-up time (time on study), and 'serBilir', 'serChol', 'albumin', 'alkaline', 'SGOT', 'platelets' and 'prothrombin' contain the value of each covariate at the corresponding visit

Author(s)

Mirko Signorelli

Examples

data(pbc2data)
head(pbc2data$baselineInfo)
head(pbc2data$longitudinalInfo)

pencal documentation built on April 3, 2025, 10:32 p.m.